Ultra Running Hub Atlanta, GA, United States · Saturday, May 29, 2027
The Underground Circus 12h
We hold no course length for this race — a timed or backyard event is measured by the clock, not the kilometre — so there is no Grit score to give you.
What the course asks
DUV results for the 2026 edition (12h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, May
Regional 2001-2020 average for May — NASA POWER, grid elevation 268 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 12h | 3 | Jordan Beck · 80.467 km | Katherine Mueller · 64.373 km |
| 2025 | 12h | 3 | Juan Zepeda · 48.280 km | — |
| 2024 | 12h | 2 | Don Carpenter · 51.161 km | Latisha Cannon · 50.452 km |
| 2023 | 12h | 2 | Olaf Detlef · 80.950 km | — |
| 2022 | 12h | 1 | Cole Springer · 80.467 km | — |
The field has held steady: 3 in 2025, 3 in 2026. 67% of the 2026 field were women.
DUV results for the 2026 edition (12h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
Course notes
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for this trail race.
- Trail Running Shoes Cushioning on trail that is still there in the last quarter.
- Race Nutrition Self-supported fuelling between aid stations.
- Hydration Vests Flask capacity without the bounce.
- Headlamps A 12 h limit puts you out there after dark.
- GPS Watches Battery life first — an ultra outlasts most full-GPS modes.
Similar races
Other trail ultras of the same format.